updated version of the public repo

.gitlab-ci.yml

+image: maven:latest
+
+stages:
+  - deploy
+  
+pages:
+  stage: deploy
+  tags:
+    - docker  
+  script:
+    - /usr/bin/mvn clean package javadoc::javadoc -Dshow=private -f Game/pom.xml
+    - mkdir -p public
+    - cp -r Game/target/apidocs/* public
+    - ls -al public/*
+  artifacts:
+    paths:
+    - public/
+

Code/pom.xml

+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>fr.centralesupelec.galtier</groupId>
+  <artifactId>bootcamp</artifactId>
+  <version>1</version>
+</project>
\ No newline at end of file

Code/src/main/java/Rectangle.java

+public class Rectangle {
+
+	// attributes:
+	double width;
+	double length;
+	static int nbRectangles = 0;
+
+	// constructor:
+	Rectangle(double w, double l) {
+		width = w;
+		length = l;
+		nbRectangles++;
+	}
+
+	// methods that read attributes:
+	double getArea() {
+		return (length * width);
+	}
+	double getPerimeter() {
+		return 2 * (length + width);
+	}
+
+	// method that changes attributes: 
+	void resize(double coefficient) {
+		length = length * coefficient;
+		width = width * coefficient;
+	}
+
+	// displayer:
+	void printDescription() {
+		System.out.println("width = " + width + ", length = " + length);
+	}
+}
+

Code/src/main/java/bootcamp/part1/_01_helloWorld/HelloWorld.java

+/**
+ * First example
+ */
+package bootcamp.part1._01_helloWorld;
+
+public class HelloWorld {
+
+	public static void main(String[] args) {
+		System.out.println("Hello world!");
+	}
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld2.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld2 {
+
+	public static void main(String[] args) {
+		System.out.println("Hello world!");
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld3.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld3 {
+
+	public static void main(String[] args) {
+		System.out.println("Hello world!")
+	}
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld4.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld4 {
+
+	public static void main(String[] args) {
+		system.out.println("Hello world!");
+	}
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld5.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld5 {
+
+	public static void main(String[] args) {
+		System.out.display("Hello world!");
+	}
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld6.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld6 {
+
+	public static void main(String[] args) {
+		System.out.println('Hello world!');
+	}
+}

Code/src/main/java/bootcamp/part1/_02_helloWorld/bugged/HelloWorld7.java

+/**
+ * Read this program and try to find the problem.
+ * Attempt to execute the program and observe the error message.
+ * Correct the problem so the program executes and displays "Hello world!".
+ */
+package bootcamp.part1._02_helloWorld.bugged;
+
+public class HelloWorld7 {
+
+	public void main(String[] args) {
+		System.out.println("Hello world!");
+	}
+}

Code/src/main/java/bootcamp/part1/_03_helloWorldAlt/HelloWorld.java

+/**
+ * For now, keep the 'main' method minimalist 
+ * and write all the code in the constructor
+ * as in the following example.
+ */
+package bootcamp.part1._03_helloWorldAlt;
+
+public class HelloWorld {
+
+	public static void main(String[] args) {
+		new HelloWorld();
+	}
+	
+	public HelloWorld() {
+		System.out.println("Hello world!");
+	}
+}

Code/src/main/java/bootcamp/part1/_04_variables/PrimitiveVarDemo.java

+package bootcamp.part1._04_variables;
+
+public class PrimitiveVarDemo {
+
+	public static void main(String[] args) {
+		new PrimitiveVarDemo();
+	}
+	
+	public PrimitiveVarDemo() {
+		int nb; // declare variable type and name
+		nb = 3; // assign value ("affectation" en français)
+		
+		int n = 4; // declaration and value assignment in one line
+		
+		boolean isGood = false; // !!! "False" in Python, but "false" in Java
+		
+		char a = 'e';
+		char c;
+		c = a;
+		System.out.println(c);
+		
+		// Which instructions are correct?
+		// Uncomment each line, one at a time to find out.
+		// c = 'a';
+		// c = a;
+		// c = '\n';
+	    // c = null;
+		// c = "a";
+		// c = '';
+		// c = b;
+		
+		// example of runtime error
+		int q = 3/0;
+	}
+}

Code/src/main/java/bootcamp/part1/_05_methods/Exercise1.java

+/**
+ * Find the 3 problems in this code.
+ */
+package bootcamp.part1._05_methods;
+
+class Exercise1 {
+
+	public static void main(String[] args) {
+		new Exercise1();
+	}
+	
+	Exercise1() {
+		char s = sum(1, 2);
+		System.out.print(s);
+		System.out.print(result);
+	}
+
+	int sum(int a, int b) {
+		int result = a + b;
+		return result;
+		System.out.print(result);
+	}
+}

Code/src/main/java/bootcamp/part1/_05_methods/Exercise2.java

+/**
+ * Write a method atLeastOneFalse that takes 3 boolean values as parameters 
+ * and returns true if at least one of them is false, and false otherwise.
+ * (Use the Java Memento to learn about boolean operations syntax.)
+ */
+package bootcamp.part1._05_methods;
+
+public class Exercise2 {
+
+	public static void main(String[] args) {
+		new Exercise2();
+	}
+
+	public Exercise2() {
+		System.out.println(atLeastOneFalse(true, true, true)); // expected return: false
+		System.out.println(atLeastOneFalse(true, true, false)); // expected return: true
+		System.out.println(atLeastOneFalse(false, true, false)); // expected return: true
+	}
+
+}

Code/src/main/java/bootcamp/part1/_05_methods/NoParamNoReturn.java

+/**
+ * Write a hello method that doesn't take parameters and 
+ * doesn't return a result but simply displays "hello".
+ */
+package bootcamp.part1._05_methods;
+
+public class NoParamNoReturn {
+
+	public static void main(String[] args) {
+		new NoParamNoReturn();
+	}
+	
+	public NoParamNoReturn() {
+		hello();
+	}
+	
+	// write the hello method here
+}

Code/src/main/java/bootcamp/part1/_05_methods/WithParamNoReturn.java

+/**
+ * Write a method displayProduct that takes 2 integer values (int) as parameters 
+ * and displays their product using the following format:
+ * 2 * 3 = 6 (first operand, space character, "*", space character, "=", space, result)
+ */
+package bootcamp.part1._05_methods;
+
+public class WithParamNoReturn {
+
+	public static void main(String[] args) {
+		new WithParamNoReturn();
+	}
+	
+	public WithParamNoReturn() {
+		displayProduct(2, 3);
+	}
+}

Code/src/main/java/bootcamp/part1/_06_cast/HelloWorld.java

+/**
+ * Add a cast where needed.
+ * Observe the display values.
+ */
+package bootcamp.part1._06_cast;
+
+public class HelloWorld {
+
+	public static void main(String[] args) {
+		new HelloWorld();
+	}
+	
+	public HelloWorld() {
+		// int is double
+		int i = 3;
+		double d = i;
+		System.out.println("i = " + i + "\t d = " + d);
+		
+		// double is not int
+		double pi = 3.14;
+		int n = pi;
+		d = n;
+		System.out.println("pi=" + pi + " n=" + n + " d=" + d);
+	}
+}

Code/src/main/java/bootcamp/part1/_07_conditional/FactorialExercise.java

+/**
+ * Write a recursive method to compute the factorial of an integer given as parameter.
+ */
+package bootcamp.part1._07_conditional;
+
+public class FactorialExercise {
+
+	public static void main(String[] args) {
+		new FactorialExercise();
+	}
+
+	public FactorialExercise() {
+		System.out.println(factorial(0)); // expected result: 1
+		System.out.println(factorial(1)); // expected result: 1
+		System.out.println(factorial(5)); // expected result: 120
+		System.out.println(factorial(12)); // expected result: 479,001,600
+	}
+	
+	int factorial(int n) {
+		return n * factorial(n-1);
+	}
+
+}

Code/src/main/java/bootcamp/part1/_07_conditional/RideExercise.java

+/**
+ * The fare to a ride depends on the membership and age of the rider: 
+ * non-members pay a price equal to their age, while members get 10% off. 
+ * Write a method `double getFare(boolean isMember, int age)` to compute the fare.
+ */
+package bootcamp.part1._07_conditional;
+
+public class RideExercise {
+
+	public static void main(String[] args) {
+		new RideExercise();
+	}
+	
+	public RideExercise() {
+		System.out.println(getFare(false, 9)); // expected result: 9
+		System.out.println(getFare(true, 9));  // expected result: 8.1
+		System.out.println(getFare(true, 5));  // expected result: 4.5
+	}
+}

Code/src/main/java/bootcamp/part1/_08_loops/IterativeFactorialExercise.java

+/**
+ * Replace the "for" loop of this iterative method by a "while" loop.
+ */
+package bootcamp.part1._08_loops;
+
+public class IterativeFactorialExercise {
+
+	public static void main(String[] args) {
+		new IterativeFactorialExercise();
+	}
+	
+	public IterativeFactorialExercise() {
+		System.out.println(factorial(0)); // expected result: 1
+		System.out.println(factorial(1)); // expected result: 1
+		System.out.println(factorial(5)); // expected result: 120
+		System.out.println(factorial(12)); // expected result: 479,001,600
+	}
+
+	int factorial(int n) {
+		int f = 1;
+		for (int i=1; i <= n; i++) {
+			f = f*i;
+		}
+		return f;
+	}
+}